Horseshoe-calk



(No Model.)

H. OLSON.

HORSESHOE OALK.

No. 599,350. Patented Feb. 22,1898.

3 I flbkom Oleqrv M WW Parnr HAKAN OLSON, or SOPERVILLE, ILLINOIS.

I HORSESHOE-CALK.

SPECIFICATION forming part of Letters Patent No. 599,350, dated February 22, 1898.

' Applicati fil d May 23, 1896. Serial No. 592,720. (No model.)

To aZZ whom it may concern:

Be it known that I, I-IilKAN OLSON, a citizen of the United States, and a resident of Soperville, in the county of Knox and State of Illinois, have invented certain new and useful Improvements in II orseshoe-Oalks, of which the following is a specification.

My invention relates to horseshoe calks wherein an iron body is fitted with a steel core; and the object of my invention is to produce an improved calk which may be readily and securely attached to the shoe and which may be easily and inexpensively manufactured, as will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective view of the under side of a horseshoe fitted upon one side with my improved toe, nail, and heel calks; Fig. 2, a plate-iron blank having slotted holes punched out therein in its middle longitudinal line to receive steel bearing-plate spurs; Fig. 3, a plan of a double-headed set of blanks fitted and folded together ready to be cut up in toe-calk sections; Fig. 4, a transverse section in line was of Fig. 3; Fig. 5, a modification of a singleheaded set of blanks folded together, each steel-core blank having double spurs for fastening to the shoe; Fig. 6, a perspective view of the calk ready to be fitted on the shoe; Fig. 7, a section through the calk and shoe in line IV W of Fig. 1; Fig. 8, a plan of a sin-- gle-headed set of heel-calk blanks before being cut; Fig. 9, a section in line y y of Fig. 8; Fig. 10, a plan of one of the core and spur plates, and Fig. 11 a perspective view of a finished heel-calk made from folded plates.

The horseshoe A may be of any approved pattern or construction and is provided on its under side with the usual nail-groove or fullering a and oblong nail holes I) b and also with transverse oblong recesses or holes 0 to receive the spur of the heel-calks and with a similar recess or recesses cl to receive the spur or spurs of the toecalk, as will hereinafter appear.

The wrought-iron socket portion 13 of the toe-calk C differs from others heretofore employed in the shape, material, and method of manufacture and union with the steel coreplate, which is substantially as follows: A rolled plate-iron'blank f is made slightly taess or blow to the toe of the shoe.

pering or thinned down from its middle lon= gitudinal line to its side edges and has rectangular slots f punched through the said plate on said longitudinal line at suitable intervals to receive spurs g of equal length and width which project from the side edge of an otherwise rectangular plate of steel g, which form the core-plate D of the'toe-oalk. V The plateiron blank f is first rolled or otherwise folded into a U form, closely enveloping the steelplate blank g, the spurs fitting snugly and passing through the slots f therein, after which the plates are rolled solidly together when heated to a welding heat, then out in sections of the proper length to form toecalks and bent to conform to the toe of the horseshoe, as shown detached therefrom in Fig. 6, and as attached to the said shoe, as

shown in Figs. 1 and 7 of the drawings. The last named, Fig. '7, shows the mode of attachment, which consists of heating the spur or the whole of the toe-calk to a welding heat and then passing said spur through the recess or hole d in the toe of the horseshoe and welding it thereon. Fig. 5 shows blank bars before they are cut and bent to .form separate calks and have two spurs upon the steel core, one upon each end of the calk, to hold the latter more securely upon the shoe. The toe calk 0, consisting of the socket portion B and the core-plate D, may be first heated sufficiently and cut from the blank bar and then raised to a welding heat and struck up solidly, welded together, as shown in Fig. 6, and then welded by a second proc- The mode of fastening to the shoe, however, is immaterial to this invention.

The preferred method of forming the toecalk is to provide a double plate-iron blank f for the socket portion of the toe-calk B, as shown in Figs. 3 and 4, in a manner similar to that above described for the single socketplate and then out the rolled compound bar into toe-calk sections in the lines 1 2, 3 4, 5 6, 7 8 by any suitable means.

The heel-calk E, as shown in section in Fig. 9 and in perspective "in Fig. 11, is made in a manner similar to that described for the toecalk, only that a single plate It forms the socket-bar E and is punched out to receive wedge-spurs F, which are passed through the said apertures, and the single plate h is folded or rolled down over the said spurs, as shown in Fig. 8,and then cut into separate heel-calks, the core and body being welded together and the body being finally finished and made to envelop completely the core, as shown in Fig. 11, by a drop-forge, hammer, or dies when the metal is at a welding heat. The mode of attaching the heel-calks of this pattern to the heel of the shoe is well known, the point of the spur F being hammered into the holes 0 in the heels of the shoe when sufficiently ho to weld the pieces together.

I claim as my invention and desire to secure by Letters Patent- 1. As an improved article of manufacture,

a steel plate or web having channeled bars of.

wrought-iron folded upon and fitted to the opposite longitudinal edges thereof by spurs upon the steel plate which project through holes in the said Wrought-iron bars and adapted to be cut in sections to form horseshoecalks, substantially as described.

2. As an article of manufacture, a horseshoe-calk consisting of a socket orj acket made of rolled plate-iron made U -shaped and having a series of apertures in the fold thereof, and a plate of steel having a corresponding series of spurs to fit said aperture and held between the opposite sides or leaves of said iron plate, substantially as described.

3. A heel-calk, made of a wrought-iron channel-bar having a series of perforations fitted with a'spur core-plate cut in sections and swaged or forged at its out ends to close around said core-plate, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HAKAN OLSON.- Witnesses:

H. E. OLSON, SWAN LARSON. 

